English

Automatic sequences are also non-uniformly morphic

Number Theory 2021-03-23 v1 Formal Languages and Automata Theory

Abstract

It is well-known that there exist infinite sequences that are the fixed point of non-uniform morphisms, but not kk-automatic for any kk. In this note we show that every kk-automatic sequence is the image of a fixed point of a {\it non-uniform\/} morphism.

Keywords

Cite

@article{arxiv.1910.08546,
  title  = {Automatic sequences are also non-uniformly morphic},
  author = {Jean-Paul Allouche and Jeffrey Shallit},
  journal= {arXiv preprint arXiv:1910.08546},
  year   = {2021}
}

Comments

arXiv admin note: text overlap with arXiv:0905.0015

R2 v1 2026-06-23T11:48:05.261Z